Optime I is very versatile protection characterised by its lightness. Despite being so lightweight it is the best imaginable protection. This makes it easy to team with other equipment and means that the ear rests comfortably. Optime I is the natural choice when you need to use all-round protection for both short and long spells. The wide comfortable sealing rings are filled with a unique combination of fluid and foam which gives optimum sealing and low contact pressure ensuring the best possible comfort even during long periods of use. It is first-rate for use in environments with moderate industrial noise such as workshops sheet-metal shops and printing works but can also be used to good effect outdoors for instance when mowing the lawn or in connection with hobby and leisure activities. SNR 26dB High Frequency 30dB Medium Frequency 24dB Low Frequency 15dB.